Nut and washer.



R. H. OWEN. NuT AND WASHER.

APPLICATION FILED APR. 16. 19|?.

BfMO. Patented Mar. 5, 1918.

Ll (l littlill) STATES PATENT OFFE.

RICHARD H. OWEN, OF LEXINGTON, NGRTH CAROLINA.

NUT AND WASHER.

Application filed April 16, 1917.

To r//l `iol/.om yt may concern.'

Be it known that I, ilicitano H. (brins, a citizen o't the United States, residing` at Lexington, in the county oft' Davidson and Pilate oi" North arolina, have invented a new and nset'ul Nut and lVasher. ot' which the Following is a specification.

'.lhis invention relates to nut locks, and has Vlor its object to provide means whereb)Y accidental severance o'l the nut from the holt will be reduced. to a minimum.

The. invention also has for its object to employ means 'tor utilizing the retrograde pressure ot' the nut against its locking means to tighten the bolt on which the nut is mounted.

llith the Aforegoing and other objects in `view which will appear as the description proceeds, the ii'ivention .resides in the coinbination and arrangeniei'it ot' parts and in the details oit construction hereinai'ter destr`hedand claimed, `it being understood that changes in the precise embodiment of `the invention herein disclosed, can be made within the scope of what is claimed, without departing trom the spirit ot the invention.

ln the accon'ipanyingnr drawings:

Figure, 1 is a 'Front elevation oi the invention.

Fig. 2 used;

Fig. 3 is an end elevation oi" the invention as it appears when assembled;

Figs. l and 5 are detail perspective views ot the washer;

Fig. (3 is a cross section taken on the line :fi-8 ot Fig'. l.

.lteterrinn more specifically to the drawings, the numeral l designates any common torni oit bolt provided. with a head la and a thread portion lb passing through an opening' in a` fish-plate or any other body portion i2 intended to receive a bolt.

The bolt l has a nut provided with ratchet teeth 3. The washer is made ot' an'v suitable material, preferably metal, and is composed ol? two segments A and B, adapted to be interposed on the bolt l, between the base 2 and nut 3. The Seffment A has a. lflat base. 5 throughout its length,

is a bottom view oit the type ot nut Specification of Letters Patent.

Patented Mar. 5, 1918.

Serial No. 162.412.

and an outer inclined or cam surifaee 5. Formed on the thick end of this segment A and extending outwardly therefrom is a shank T. rThis shank T may be provided with openings adapted to receive rivets i so that the shank mayY be held in a rigid po sition with the hase The shank 7 is also provided with a notched portion S, the purpose o'li which will be hereinafter explained.

The segment B is lormed with an inclined or cani surface and a tiat surface (5. The cani surface ol the segment B is adapted to engage` with the cam surface of the segment A, the, two cam tacos being' oppositely pitched. lhe thick end oi" the segment B is split to form a tongue 10 and pawl 1l. The pawl. is bent outwardlyv from the surface (3" and adapted to engage with the teeth 3 ot the nut ln use, the bolt l is placed through a base 2. The segment A is placed in .its position on the bolt and the shank T is then secured to base The segment B .is then placed on the bolt l, the. cam surtace of the, said seg nient eiigjaittingthe cam surface or' the segment A. The nut 3 is then turned on the bolt to the position shown in Fig. 3. The pawl llY springs into engagement with a tooth on the nut 3 and prevents retrograde rotation of said nut. It, however, the head ot the bolt is not in a snug position with the base 2, upon reverse movement of the nut the segment A will travel in the same direction as the nut upon the segment B, thereby causing the head oit the bolt to come, in tighter engagement with the base 2.

Then it is desired to remove the nutfrom the bolt, a chisel or other iinifilenient lis placed in the notched portion S and driven longitudiinilly ot' the shank 7 until the rivets 4.- are disengaged from their position in the base The segment B may then be easilyr removed t'roni its position and the segment. A likewise removed.

Having' thus described the invention, what is claimed as new is:

l nut lock comprising' a bolt, a nut adapted to be threaded on the bolt, teeth on the inner 't'aee of the nut, a cam faced member formed with a radial shank adapted to em- Q Leeeneo brace the bolt, said shank povied with e as my own, have heeto affixed my sgnaA transverse notch, a sln; washer, mfmed ture in the pesence o wo Witnesses. with e @am face comp emental to the @am face member, adapted to encircle the bolt, RICHARD E' OWEN' 5 :md a paWl on the Washe; and positioned to 1KJwioesses:

engage the teeth of the nut. H. H. KooNTs,

In testimony that I claim the foregoing JN0. H. Meme.

Copies of this patent may be obtained for ve cents eachy by adl'essing the Commissioner of Patents, Washington, D. U. 

